java 使用代码关闭java框架
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close java frame using code
提问by user673218
Possible Duplicate:
How to programmatically close a JFrame
可能的重复：
如何以编程方式关闭 JFrame
I am developing a java GUI using JFrame. I want to close the GUI frame and dispose it off through code. I have implemented :
我正在使用 JFrame 开发 Java GUI。我想关闭 GUI 框架并通过代码处理它。我已经实施：
topFrame.addWindowListener(new WindowListener()
{
public void windowClosing(WindowEvent e)
{
emsClient.close();
}
public void windowOpened(WindowEvent e) {
}
public void windowClosed(WindowEvent e) {
}
public void windowIconified(WindowEvent e) {
}
public void windowDeiconified(WindowEvent e) {
}
public void windowActivated(WindowEvent e) {
}
public void windowDeactivated(WindowEvent e) {
}
});`
How can I invoke the windowClosing event?? Or is there some other way?
如何调用 windowClosing 事件？或者有其他方法吗？
采纳答案by sfrj
You need this:
你需要这个：
yourFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
You can add that line in the constructor(Dont forget it).
您可以在构造函数中添加该行（不要忘记）。
回答by WhiteFang34
This will programmatically trigger the window closing event:
这将以编程方式触发窗口关闭事件：
topFrame.dispatchEvent(new WindowEvent(topFrame, WindowEvent.WINDOW_CLOSING));
If you want to close the frame you need to call:
如果要关闭框架，则需要调用：
topFrame.dispose();
回答by Lukasz
How about invoking dispose()method?
调用dispose()方法呢？
回答by Andrew Thompson
import java.awt.event.*;
import javax.swing.*;
class CloseFrame {
public static void main(String[] args) {
Runnable r = new Runnable() {
public void run() {
JButton close = new JButton("Close me programmatically");
final JFrame f = new JFrame("Close Me");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane( close );
close.addActionListener( new ActionListener(){
public void actionPerformed(ActionEvent ae) {
// make the app. end (programatically)
f.dispose();
}
} );
f.pack();
f.setLocationByPlatform(true);
f.setVisible(true);
}
};
SwingUtilities.invokeLater(r);
}
}
